Search found 6 matches

by maplebones
Thu May 12, 2011 9:15 pm
Forum: Early model JD crawler technical support
Topic: 420 steering clutch blues
Replies: 0
Views: 2509

420 steering clutch blues

I've had a 420c with winch and blade for about 7 years. It's not real pretty and it's been around the block a few times, but it's done a lot of work for me around the farm. I don't usually strain it very much, but this spring the snow was rediculous in the maple sugar bush and it was quite a chore t...
by maplebones
Sun Jul 26, 2009 5:57 am
Forum: Early model JD crawler technical support
Topic: Leaking Gearmatic 8A on my 420c
Replies: 4
Views: 4557

Leaking Gearmatic 8A on my 420c

The hydraulic line for the clutch on this unit goes through the center of the right side cover. The line makes a connection at that point with the turning assembly, and to seal the connection there is a small rubber fitting. It's a disc about 1/2 inch diameter that looks like a brake cylinder cup, e...
by maplebones
Thu Jan 03, 2008 9:36 am
Forum: Early model JD crawler technical support
Topic: Poll for what kind of crawler you have.
Replies: 220
Views: 198858

Two 420's
by maplebones
Wed Dec 05, 2007 11:38 am
Forum: Early model JD crawler technical support
Topic: Cast iron repair??
Replies: 15
Views: 15802

welding final drive

I have a large stainless weld on the final drive housing on my 420c, done by an unknown previous owner, and I've often wondered if they just got lucky, or if the composition of the housing allowed itself to be welded. There are different types of cast iron, gray cast used in engine blocks and low st...
by maplebones
Wed Nov 07, 2007 11:23 am
Forum: Early model JD crawler technical support
Topic: Help! This 420 steers badly.
Replies: 3
Views: 3836

Thanks Lavoy. It's not what I wanted to hear but it's what I suspected. I'm not sure the best way to go with this machine, but if I'm looking at others, am I right to assume that the clutch fingers move outwards as the facings wear ? If that's the case, then is the amount of clearance between the th...
by maplebones
Wed Nov 07, 2007 8:32 am
Forum: Early model JD crawler technical support
Topic: Help! This 420 steers badly.
Replies: 3
Views: 3836

Help! This 420 steers badly.

I had a 420c years ago, but it had issues, the blow-by was killing me, and I let it go to someone who had the time and money to give it the attention it deserved. It was very handy around the farm and so now I'm looking for another one. There's one nearby that the present owner aquired as a trade an...